102B/H Challenger High stability compass for bulkhead mount: Big digits -easy to read at distance. Wheelmark / Lifeboat approved. Top quality/accuracy relation. Big full cover. Template matches Contest 101 and 100. All UV resistant materials. Capsule filled with UV resistant liquid. No transparent capsule eliminates burn effect. Two axis gimbals. Heeling scale. Edge scale with big digits. Two lubber lines at 45 allows for reading from the rail. Built-in red illumination for best contrast at night. 102B/H is equipped with a heeling angle scale and illumination.